handle booleans better in main.lua

main.lua

@@ -137,7 +137,7 @@ local __collectgarbage				= collectgarbage
 local __os_execute					= os.execute
 
 local using_ac = function()
-	if util.conky('${acpiacadapter AC}') == 'on-line' then return 0 end
+	return util.conky('${acpiacadapter AC}') == 'on-line'
 end
 
 local current_last_log_entry = util.execute_cmd('tail -1 /var/log/pacman.log')
@@ -184,7 +184,7 @@ function conky_main()
 		t2 = updates % (UPDATE_FREQUENCY * 300)
 	end
 
-	local log_is_changed = 1
+	local log_is_changed = false
 	if t2 == 0 then log_is_changed = check_if_log_changed() end
 	local interface_changed = check_interface()
 

module/Pacman.lua

@@ -13,11 +13,6 @@ local PACMAN_TABLE = {
 	'pacman -Qmq'
 }
 
-local _INITIAL_PGK_CNT_ = {}
-for i, cmd in pairs(PACMAN_TABLE) do
-	_INITIAL_PGK_CNT_[i] = util.line_count(util.execute_cmd(cmd))
-end
-
 local _TEXT_SPACING_ = 20
 
 local header = Widget.Header{
@@ -43,13 +38,12 @@ local info = Widget.TextColumn{
 	spacing 	= _TEXT_SPACING_,
 	x_align 	= 'right',
 	text_color 	= schema.blue,
-	unpack(_INITIAL_PGK_CNT_)
+	num_rows 	= 5
 }
 
 Widget = nil
 schema = nil
 _TEXT_SPACING_ = nil
-_INITIAL_PGK_CNT_ = nil
 
 local update = function(cr)
 	for i, cmd in pairs(PACMAN_TABLE) do
@@ -57,8 +51,8 @@ local update = function(cr)
 	end
 end
 
-local draw = function(cr, current_interface, trigger)
-	if trigger == 0 then update(cr) end
+local draw = function(cr, current_interface, log_is_changed)
+	if log_is_changed then update(cr) end
 	
 	if current_interface == 0 then
 		Text.draw(header.text, cr)

module/System.lua

@@ -40,19 +40,19 @@ local info = Widget.TextColumn{
 	x_align 	= 'right',
 	text_color 	= schema.blue,
 	util.conky('$kernel'),
-	util.conky('$uptime'),
-	extract_date(UPGRADE_CMD),
-	extract_date(SYNC_CMD)
+	'<row2>',
+	'<row3>',
+	'<row4>'
 }
 
 Widget = nil
 schema = nil
 _TEXT_SPACING_ = nil
 
-local draw = function(cr, current_interface, trigger)
+local draw = function(cr, current_interface, log_is_changed)
 	TextColumn.set(info, cr, 2, util.conky('$uptime'))
 	
-	if trigger == 0 then
+	if log_is_changed then
 		TextColumn.set(info, cr, 3, extract_date(UPGRADE_CMD))
 		TextColumn.set(info, cr, 4, extract_date(SYNC_CMD))
 	end